Microsoft has released Windows Server 2022 KB5059092, which addresses issues with 2025.04 B container images, ensuring compatibility and reliability across different Windows versions. It fixes a compatibility problem between system files, preventing startup failures.

April 16, 2025—KB5059092 (OS Build 20348.3566) Out-of-band

Improvements

This non-security update includes quality improvements. When you install this KB:

This update fixes an issue caused by 2025.04 B container images released on April 8, 2025 where Windows containers running in Hyper-V isolation mode could fail to start in some cases if their update level didn’t match that of the hosting utility virtual machine (UVM). The mismatch caused compatibility problems between system files, leading to startup failures. With this update, containers now correctly access the necessary system files from the host, improving reliability and compatibility across different Windows versions.

Windows Server 2022 servicing stack update (KB5055668) - 20348.3440

This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates. To learn more about SSUs, see  Simplifying on-premises deployment of servicing stack updates.

April 16, 2025—KB5059092 (OS Build 20348.3566) Out-of-band - Microsoft Support